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src
shogun
labels
StructuredLabels.cpp
Go to the documentation of this file.
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* Written (W) 2012 Fernando José Iglesias García
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* Copyright (C) 2012 Fernando José Iglesias García
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*/
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#include <
shogun/labels/StructuredLabels.h
>
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using namespace
shogun;
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CStructuredLabels::CStructuredLabels
()
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:
CLabels
()
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{
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init();
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}
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CStructuredLabels::CStructuredLabels
(int32_t num_labels)
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:
CLabels
()
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{
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init();
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m_labels
=
new
CDynamicObjectArray
(num_labels);
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SG_REF
(
m_labels
);
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}
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CStructuredLabels::~CStructuredLabels
()
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{
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SG_UNREF
(
m_labels
);
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}
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CStructuredLabels
*
CStructuredLabels::obtain_from_generic
(
CLabels
* base_labels)
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{
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if
( base_labels->
get_label_type
() ==
LT_STRUCTURED
)
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return
(
CStructuredLabels
*) base_labels;
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else
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SG_SERROR
(
"base_labels must be of dynamic type CStructuredLabels\n"
);
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return
NULL;
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}
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void
CStructuredLabels::ensure_valid
(
const
char
* context)
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{
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if
(
m_labels
== NULL )
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SG_ERROR
(
"Non-valid StructuredLabels in %s"
, context);
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}
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CDynamicObjectArray
*
CStructuredLabels::get_labels
()
const
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{
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SG_REF
(
m_labels
);
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return
m_labels
;
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}
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CStructuredData
*
CStructuredLabels::get_label
(int32_t idx)
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{
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ensure_valid
(
"CStructuredLabels::get_label(int32_t)"
);
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if
( idx < 0 || idx >=
get_num_labels
() )
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SG_ERROR
(
"Index must be inside [0, num_labels-1]\n"
);
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return
(
CStructuredData
*)
m_labels
->
get_element
(idx);
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}
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void
CStructuredLabels::add_label
(
CStructuredData
* label)
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{
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ensure_valid_sdt(label);
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m_labels
->
push_back
(label);
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}
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bool
CStructuredLabels::set_label
(int32_t idx,
CStructuredData
* label)
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{
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ensure_valid_sdt(label);
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int32_t real_idx =
m_subset_stack
->
subset_idx_conversion
(idx);
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if
( real_idx <
get_num_labels
() )
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{
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return
m_labels
->
insert_element
(label, real_idx);
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}
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else
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{
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return
false
;
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}
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}
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int32_t
CStructuredLabels::get_num_labels
()
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{
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if
(
m_labels
== NULL )
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return
0;
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else
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return
m_labels
->
get_num_elements
();
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}
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void
CStructuredLabels::init()
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{
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SG_ADD
((
CSGObject
**) &
m_labels
,
"m_labels"
,
"The labels"
,
MS_NOT_AVAILABLE
);
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m_labels
= NULL;
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m_sdt
=
SDT_UNKNOWN
;
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}
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void
CStructuredLabels::ensure_valid_sdt(
CStructuredData
* label)
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{
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if
(
m_sdt
==
SDT_UNKNOWN
)
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{
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m_sdt
= label->
get_structured_data_type
();
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}
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else
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{
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REQUIRE
(label->
get_structured_data_type
() ==
m_sdt
,
"All the labels must "
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"belong to the same CStructuredData child class\n"
);
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}
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}
SHOGUN
Machine Learning Toolbox - Documentation